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17453 (1990 RQ9)
Classification: Main-belt Asteroid          SPK-ID: 2017453
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1957513228831024 7.5349e-08  
a 2.289230274888367 1.4931e-08 au
q 1.841110420194921 1.7122e-07 au
i 5.823964843135619 7.6981e-06 deg
node 208.7353387263293 5.6117e-05 deg
peri 134.7055874882834 5.8257e-05 deg
M 110.2009969124374 1.8474e-05 deg
tp 2457013.228381473252
(2014-Dec-21.72838147)
6.2924e-05 JED
period 1265.122699211211
3.46
1.2377e-05
3.389e-08
d
yr
n .2845573794735132 2.784e-09 deg/d
Q 2.737350129581813 1.7854e-08 au
  Orbit Determination Parameters
   # obs. used (total)      943  
   data-arc span      10769 days (29.48 yr)  
   first obs. used      1986-06-26  
   last obs. used      2015-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54012  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:36:54  

Additional Information
 Earth MOID = .837492 au 
 Jupiter MOID = 2.68457 au 
 T_jup = 3.567 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2 mag n/a MPO266048  

17453 (1990 RQ9)          Discovered 1990-Sep-14 by Holt, H. E. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 RQ9 = 1999 CN69 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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